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   "source": [
    "# Normalization Layer"
   ]
  },
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   "metadata": {},
   "source": [
    "\n",
    "```{note}\n",
    "We will refer to normalization layers as Norm layers.\n",
    "```"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## What do Norm layers do?\n",
    "\n",
    "Norm layers normalize the input. Normalization really helps stabelize training and improve training speed. Before norm layers are introduced, people had a very difficult time training huge models (big and deep) because of exploding/vanishing gradients, and normalization simply removes that issue mostly."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## When to use Norm layers?\n",
    "\n",
    "Almost always. If you want to train a big and deep neural network, remember to normalize your input."
   ]
  }
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